Patients with cerebral infarction who have had one may have a second occurrence, and cerebral infarction is a high recurrence rate disease. There are many risk factors for the formation of cerebral infarction, some of which are preventable and controllable, and some of which are unavoidable. Patients who have had a cerebral infarction should actively and effectively prevent controllable factors to prevent patients from having a recurrence of cerebral infarction. After multiple cerebral infarction will no longer lead to a decline in the quality of life of the patient, and in serious cases may threaten the life and health of the patient, prevention of cerebral infarction is to take drugs regularly according to medical advice. If the patient has a cerebral infarction caused by atherosclerosis, long-term oral aspirin or clopidogrel hydrogen sulfate and anti-platelet aggregation therapy should be taken. If the patient has atrial fibrillation and cardiogenic embolic dislodgement, the patient should take anticoagulant drugs, such as rivaroxaban and warfarin anticoagulation, to prevent cerebral infarction. If the patient has underlying diseases such as diabetes, hypertension, hyperlipidemia, etc., the underlying diseases should be strictly controlled in order to minimize the degree of atherosclerosis, avoid the formation of thrombus, and avoid acute occlusion of blood vessels to form cerebral infarction. Lifestyle must pay attention to low-salt and low-fat diet, quit smoking and alcohol.